Renzi-Jia

利用Matlab生成GPS C/A 码的基带信号。 （1）产生卫星PRN 号码为“5”的一组C/A 码； （2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值； （3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据； （4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，不加入噪声，进一步生成某个特定的中频信号。(Matlab generated using GPS C/A code base band signal. (1) generation of satellite PRN number is " 5" a set of C/A code (2) loop generates 25 of the navigation data, GPS time can fill a fixed known value (3) to generate C/A code spread spectrum signal, each C/A code chip gives the four sampling data (4) baseband signals using square wave signal, level 0 and 1, 50 duty cycle, not to join the noise generated further a specific frequency signal.)

Model order reduction description and its implementation in Matlab

给定特征函数，求解正交基,利用了SVM分解，快速有效兼容性好(Given the characteristic function, solving orthogonal basis)

说明：  通信系统的仿真,基于matlab的.m文件.详细给出了一种离散信道的源码!(communications system simulation, based on Matlab. M documents. Details are given a discrete channel source!)

MATLAB生成正弦信号。mif文件的程序，同时可以输出MATLAB的波形(MATLAB generate a sinusoidal signal. program mif file, while the output waveform of MATLAB)

Pulse Code Modulation (PCM)

都市供求信息网分为前后台的设计，前台主要实现信息的显示、搜索与发布功能。其中信息的显示包括列表显示与详细内容显示，而列表显示，又分为首页面的信息列表显示、查看某类别下所有信息的列表显示和搜索结果列表显示；搜索功能主要包括定位搜索和模糊搜索；后台主要实现的功能为信息显示、信息审核、信息删除、付费设置与退出登录，其中的信息显示功能也分为列表显示与详细内容显示。(Urban supply and demand information network is divided into front and back design, front main achievement of the displayed information, search and publishing. Which displays information including a list of displays and display details, but the list is displayed, the information is divided into the home side s display list, a list of all the categories of information under the display and view a list of search results display Search functions include positioning search and fuzzy search the main function of the background information display, information auditing, information deleted, pay setting and exit the registry, which is also divided into the information display function displays detailed contents list display.)

用概率算法计算pi的值，linnux环境下使用gcc编译后运行(With the probability of the value of pi algorithm, linnux environment using the gcc compiler to run after)

利用GUI功能完成包括AM，DSB，SSB，FM模拟调制在内的调制解调过程，参数可调。(GUI for analog modulation & demodulation, including AM, DSB, SSB, FM.)

程序为参数寻优的集合，包含当今主流优化工具，适合初学者参考。(Program for the parameter optimization of collection, including today s mainstream optimization tool, suitable for beginners reference. )